Scientific Atlanta PowerVu D9234, Инструкция по установке и эксплуатации, Страница: 29 / 78

Step 2. Enter a valid frequency and then press SELECT. You can also press the Ï / Ð
arrow buttons to display available settings (frequencies are displayed from 0
GHz through 15 GHz in 1 MHz steps). The default setting is 10.600 GHz.
Step 3. When the desired setting is displayed on-screen, move to Exit and press
SELECT, or press 1 and then press SELECT to change the current setting.
A pop-up menu displays Save options.
Step 4. Press 1 to save the new setting (YES), or follow the on-screen instructions, as
required.
Available options: Press 1 to save the new settings (Yes), or press 2 to discard all
changes (No), or press 3 to cancel the operation (Cancel).
Repeat this action to change to another frequency. A Local Oscillator #2 frequency
setting is required only if the Downlink or L-Band/2 Frequency Mode is set (N/A
1
displayed if Frequency Mode set to L-Band/1, or if operating Frequency in C-Band
range [3.7-4.2 GHz]). The Local Oscillator #2 frequency used must be greater than
the Local Oscillator #1 frequency.
To set the Crossover frequency
Step 1. Move to Crossover and press SELECT to replace the current setting.
Step 2. Enter a valid frequency and then press SELECT. You can also press the Ï / Ð
arrow buttons to display available settings (frequencies are displayed from
10.7 GHz through 15 GHz in 250 kHz steps). The default setting is 11.700 GHz.
Step 3. When the desired setting is displayed on-screen, move to Exit and press
SELECT, or press 1 and then press SELECT to change the current setting.
A pop-up menu displays Save options.
Step 4. Press 1 to save the new setting (YES), or follow the on-screen instructions, as
required.
Available options: Press 1 to save the new settings (Yes), or press 2 to discard all
changes (No), or press 3 to cancel the operation (Cancel).
Repeat this action to change to another frequency. A Crossover frequency setting is
required only if the Downlink Frequency Mode is set (N/A
1
displayed if Frequency
Mode set to L-Band/1 or L-Band/2 [not dual Ku-Band LNB operation]). The
Crossover frequency setting determines which LNB is used (only for dual-LNB
operation).
To set the antenna LNB polarization
Step 1. Move to Polarization and press SELECT to display available settings
(H [Horizontal], H (Fixed), V [Vertical]) or V (Fixed). The default setting is
H (Horizontal).
Step 2. When the desired setting is displayed on-screen, move to Exit and press
SELECT, or press 1 and then press SELECT to change the current setting.
A pop-up menu displays Save options.
Step 3. Press 1 to save the new setting (YES), or follow the on-screen instructions, as
required.
Available options: Press 1 to save the new settings (Yes), or press 2 to discard all
changes (No), or press 3 to cancel the operation (Cancel).
Repeat this action to change the polarization. When a Horizontal polarization is set,
a 19 volt DC signal is output via the receiver rear panel RF IN connector. When a
Vertical polarization is set, a 13 volt DC signal is output via this connector. Observe
the effect of the polarization change by checking the displayed relative Signal
Strength and Signal Quality values (see Figure 9). Higher numbers are better. If you
are unsure about which polarization to use, contact your dealer/reseller, or local
service provider.
To set the FEC rate
Step 1. Move to FEC Rate and press SELECT to display available settings (1/2, 2/3,
3/4, 5/6, or 7/8). The default setting is 7/8.
Step 2. When the desired setting is displayed on-screen, move to Exit and press
SELECT, or press 1 and then press SELECT to change the current setting.
A pop-up menu displays Save options.
Step 3. Press 1 to save the new setting (YES), or follow the on-screen instructions, as
required.
Available options: Press 1 to save the new settings (Yes), or press 2 to discard all
changes (No), or press 3 to cancel the operation (Cancel).
Repeat this action to change the FEC Rate. The selected FEC Rate must match the
FEC Rate associated with the transmitted signal. If you are unsure about which
FEC rate to use, contact your dealer/reseller, or local service provider.